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Finding the Fourth Proportional to 266,568.17, 367,804.80 and 153,390.92

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Solution

The fourth proportional to 266,568.17, 367,804.80 and 153,390.92 is: 211,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,568.17 : 367,804.80 = 153,390.92 : x
  2. Step 2: Convert to fraction form
    266,568.17/367,804.80 = 153,390.92/x
  3. Step 3: Cross multiply
    266,568.17x = 367,804.80 × 153,390.92
  4. Step 4: Simplify right side
    266,568.17x = 56,417,914,813.39
  5. Step 5: Solve for x
    x = 56,417,914,813.39/266,568.17
  6. Step 6: Final answer
    x = 211,645.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.